Date: Mon, 25 May 2009 02:09:10 +0000 (UTC) From: Kip Macy <kmacy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r192712 - user/kmacy/releng_7_2_fcs/sys/kern Message-ID: <200905250209.n4P29AN9007468@svn.freebsd.org>
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Author: kmacy Date: Mon May 25 02:09:09 2009 New Revision: 192712 URL: http://svn.freebsd.org/changeset/base/192712 Log: remove SX_SPINS limit Modified: user/kmacy/releng_7_2_fcs/sys/kern/kern_sx.c Modified: user/kmacy/releng_7_2_fcs/sys/kern/kern_sx.c ============================================================================== --- user/kmacy/releng_7_2_fcs/sys/kern/kern_sx.c Mon May 25 02:05:00 2009 (r192711) +++ user/kmacy/releng_7_2_fcs/sys/kern/kern_sx.c Mon May 25 02:09:09 2009 (r192712) @@ -57,10 +57,6 @@ __FBSDID("$FreeBSD$"); #ifdef ADAPTIVE_SX #include <machine/cpu.h> - -#ifndef SX_SPINS -#define SX_SPINS 1000 -#endif #endif #ifdef DDB @@ -481,12 +477,8 @@ _sx_xlock_hard(struct sx *sx, uintptr_t GIANT_SAVE(); spin_count = 0; while (SX_OWNER(sx->sx_lock) == x && - TD_IS_RUNNING(owner) && - (spin_count++ < SX_SPINS)) + TD_IS_RUNNING(owner)) cpu_spinwait(); - - if (spin_count < SX_SPINS) - continue; } } #endif @@ -718,11 +710,8 @@ _sx_slock_hard(struct sx *sx, int opts, GIANT_SAVE(); spin_count = 0; while (SX_OWNER(sx->sx_lock) == x && - TD_IS_RUNNING(owner) && - (spin_count++ < SX_SPINS)) + TD_IS_RUNNING(owner)) cpu_spinwait(); - if (spin_count < SX_SPINS) - continue; } } #endif
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